Bump rouge from 3.25.0 to 3.26.0 (#11927)

Bumps [rouge](https://github.com/rouge-ruby/rouge) from 3.25.0 to 3.26.0.
- [Release notes](https://github.com/rouge-ruby/rouge/releases)
- [Changelog](https://github.com/rouge-ruby/rouge/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rouge-ruby/rouge/compare/v3.25.0...v3.26.0)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Gemfile

@@ -84,7 +84,7 @@ gem "redis-rails", "~> 5.0.2" # Redis for Ruby on Rails
 gem "request_store", "~> 1.5" # RequestStore gives you per-request global storage
 gem "reverse_markdown", "~> 2.0" # Map simple html back into markdown
 gem "rolify", "~> 5.3" # Very simple Roles library
-gem "rouge", "~> 3.25" # A pure-ruby code highlighter
+gem "rouge", "~> 3.26" # A pure-ruby code highlighter
 gem "rubyzip", "~> 2.3" # Rubyzip is a ruby library for reading and writing zip files
 gem "s3_direct_upload", "~> 0.1" # Direct Upload to Amazon S3
 gem "sassc-rails", "~> 2.1.2" # Integrate SassC-Ruby into Rails

Gemfile.lock

@@ -606,7 +606,7 @@ GEM
       nokogiri
     rexml (3.2.4)
     rolify (5.3.0)
-    rouge (3.25.0)
+    rouge (3.26.0)
     rspec (3.9.0)
       rspec-core (~> 3.9.0)
       rspec-expectations (~> 3.9.0)
@@ -920,7 +920,7 @@ DEPENDENCIES
   request_store (~> 1.5)
   reverse_markdown (~> 2.0)
   rolify (~> 5.3)
-  rouge (~> 3.25)
+  rouge (~> 3.26)
   rspec-rails (~> 4.0)
   rspec-retry (~> 0.6)
   rubocop (~> 0.93.1)